Adding the TL895 to the Enterprise Backup Solution

Adding TL895 Tape Drives to the Compaq Enterprise Backup Solution

Compaq Confidential – Need to Know Required

Writer:

Michele K Grieff

Project:

Adding TL895 Tape Drives to the Compaq Enterprise Backup Solution

Comments:

Draft Version 5

Part Number:

ECG029/0399

File Name:

g-ch6 Diagnostics.doc

Last Saved On:

5/17/99 3:10 PM

Display of a FC-AL with a Missing Fibre Channel

Tape Controller

The figure below shows a Fibre Channel Host Controller highlighted with a

Fibre Channel Tape Controller missing. This indicates that while the Tape

Controller has become inactive on the FC-AL since the utility was started.

This could mean that it has been physically disconnected or that errors are

occurring on the FC-AL at a great enough frequency to prevent the device

from maintaining login.

If there are a large number of errors occurring in the FC-AL, the Fibre

Channel Host Controller may not be able to communicate with the Fibre

Channel Tape Controllers on the FC-AL. In this case, the Fibre Channel

Controllers may appear to be offline in the program, although in reality they

are physically connected to the FC-AL. When a FC-AL shows errors, the Fibre

Channel Array and Tape Controllers may alternate between being logged-on

the FC-AL or missing.

Figure 6-17. Display of a FC-AL with a Fibre Channel Tape Controller

shown as missing